[MadMikeyL]

It's possible it could be a power steering leak, but more than likely it is the oil filter adapter gasket. I would just check and see which fluid is low. If the oil level is good and the power steering is low, look at the PS hoses. If its the other way around, replace the filter adapter gasket. It isn't that bad to replace, takes about 1-1.5hrs and the gasket is pretty cheap, so better to fix it now than risk running the engine low on oil.

 

[MadMikeyL]

Well the first thing I notice is the o-ring stuck to the block there. Check to see if the filter you pulled off also has an o-ring on it. If it does, then you had 2 of them on there, and that is your leak. If not, the other thing I notice is some oil around the pressure sensor, so that could be leaking. Both of those things are much easier to change than the oil filter adapter gasket, so I would do that first, and if it doesn't fix the leak, then do the adapter gasket.